Forms to Robokassa

I am setting up the integration of forms with robokassa according to this instruction:
https://www.balbooa.com/help/joomla-forms-documentation/integrations/payment-processing/robokassa-integration
The store on the robokassa side is not activated, and I use password No. 1 from the test settings, but I get error 25 - "Payment of bills for this store is not available." Maybe I still need to specify some kind of Result Url on the robokassa side?

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